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Bo
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For advanced drive
technology
BoWex® -Curved-tooth gear couplings®
Shaft couplings
BoWex® FLE-PA DBGM
Torsionally rigid flangecouplings
BoWex-ELASTIC®DBP
Highly flexibleflange couplings
MONOLASTIC®EP 0853203
Single parted, flexibleflange couplings
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Explosion protection use
BoWex® couplings type M until size 65 incl. with an electrically conductive nylon sleeve (PA-CF) are suitable for power transmission in hazardous areas. Thecouplings are approved according to EC Standard 94/9/EC (ATEX 95) as units of category 2G/2D and are thus suitable for the use in hazardous areas in zones G1,G2, D21 and D22. Please see our Certificate and our operating and mounting insructions on our web site www.ktr.com.
On couplings with spur toothing high edge pressure alongwith considerable wear arises at the contact surfaces in case of misalignment.
The curved teeth avoid any edge pressure on the couplingin case of angular and radial misalignment.
The material combination of steel hubs and polyamide sleeves allows for maintenance-free continuous operationwith very low friction on the teeth.
Due to the double cardanic operation of BoWex couplings restoring forces may be neglected in case of angular and radial displacements and periodic fluctuations in angular velocity do not arise.
BoWex couplings can be assembled both vertically or horizontally with no need for any special assembly tools.
The standard polyamide material is characterized by the following positive features:
● high mechanical consistency● high stiffness● high thermal stability (+ 100° C)● good viscosity even in case of low temperatures● favourable slide-friction behaviour● very good electrical insulating property● good resistance to chemicals● good dimensional accuracy
Behaviour of friction and wear of the BoWex sleeve
The smooth and hard surface (crystalline structure) and thehigh thermal stability and resistance to lubricants, fuels, hydraulic fluids, dissolvents, etc. make polyamide an idealmaterial for components stressed by sliding, particularly forthe coupling production. While any metallic materials tend to"corrode" in case of dry running, slide combinations withpolyamide and steel are operative without any lubricationand maintenance.
Hub with spur toothing
Hub with curved toothing (BoWex®)
BoWex curved-tooth gear couplings are flexible shaft con-nections for a positive torque transmission and specificallysuitable to compensate for axial, radial and angular shaft misalignment.
According to the well-known effect of curved-tooth gear couplings any edge pressure in the spline in case of angular and radial displacements is avoided so thatBoWex couplings are almost free from wear.
sleeve
sleeve
hub
sleeve
sleeve
hub
For advanced drive
technology
BoWex® Curved-tooth gear couplings®
Operating description
70
junior 14 / M-14 0,0005 0,0010 5 10 2,5 6000
junior 19 / M-19 0,0008 0,0017 8 16 4 6000
junior 24 / M-24 0,0013 0,0025 12 24 6 6000
14 0,0010 0,0021 10 20 5 14000
19 0,0017 0,0033 16 32 8 11800
24 0,0021 0,0042 20 40 10 10600
28 0,0047 0,0094 45 90 23 8500
32 0,0063 0,013 60 120 30 7500
38 0,0084 0,017 80 160 40 6700
42 0,010 0,021 100 200 50 6000
45 u. 48 0,015 0,029 140 280 70 5600
65 0,040 0,080 380 760 190 4000
80 0,073 0,15 700 1400 350 3150
100 0,13 0,25 1200 2400 600 3000
125 0,26 0,52 2500 5000 1250 2120
14 0,0015 0,0047 15 45 7,5 14000
19 0,0025 0,0075 24 72 12 11800
24 0,003 0,009 30 90 15 10600
28 0,007 0,022 70 210 35 8500
32 0,009 0,028 90 270 45 7500
38 0,013 0,038 120 360 60 6700
48 0,021 0,063 200 600 100 5600
65 0,058 0,18 560 1680 280 4000
28 0,0078 0,014 75 185 37,5 6000
32 0,014 0,028 135 335 67,5 6000
48 0,025 0,050 240 600 120 5000
T 48 0,03 0,078 300 750 150 5000
T 55 0,047 0,012 450 1125 225 4500
65 0,068 0,14 650 1600 325 3600
T 65 0,084 0,21 800 2000 400 3600
T 70 0,105 0,262 1000 2500 500 3400
80 0,13 0,25 1200 3000 600 3000
T 80 0,16 0,039 1500 3750 750 3000
100 0,21 0,43 2050 5150 1025 2500
125 0,44 0,89 4250 10700 2125 2500
W42HE 40Sh 0,0009 0,028 90 270 25 6200
40Sh 0,014 0,041 130 390 39
42HE 50Sh 0,016 0,047 150 450 45 6200
65Sh 0,019 0,057 180 540 54
40Sh 0,021 0,063 200 600 60
48HE 50Sh 0,024 0,072 230 690 69 5600
65Sh 0,029 0,088 280 840 84
40Sh 0,037 0,110 350 1050 105
65HE 50Sh 0,042 0,126 400 1200 120 4500
65Sh 0,052 0,157 500 1500 150
40Sh 0,089 0,267 750 2250 225
80HE 50Sh 0,096 0,298 950 2850 285 3600
65Sh 0,126 0,372 1200 3600 360
40Sh 0,130 0,39 1250 3750 375
G80HE 50Sh 0,16 0,50 1600 4800 480 3000
65Sh 0,21 0,62 2000 6000 600
40Sh 0,21 0,62 2000 6000 600
100HE 50Sh 0,26 0,78 2500 7500 750 2500
65Sh 0,36 1 3200 9600 960
40Sh 0,31 0, 942 3000 9000 900
125HE 50Sh 0,41 1,256 4000 12000 1200 2300
70Sh 0,52 1,570 5000 15000 1500
Max. speed
[1/min]
Design and sizeP kWPower –– –––––n 1/min
Rated Maximum
Torque TK[Nm]
TKN TK max TKW
Typeplug-in coupling /junior-M
TypeM/lASSpec.-ISGSSR
TypeM...C
TypeELASTICHEHEW
TypeFLE-PA
Determination of coupling sizeSelection according to torque
The coupling has to be selected in a way that the maximum starting torque of driving or driven machine does not exceed themaximum torque of the coupling.
With a smooth load curve and well-aligned shafts the coupling can be loaded up to the maximum torque.
In case of uneven torque course with short-term peaks the BoWex coupling may be overloaded three times the rated torque mentioned.
For small shaft dimensions please take into account the permissible surface pressure on the keyway connection.
● Curved-tooth gear coupling plug-in design (2 parts) from nylon
● Double cardanic curved-tooth gear coupling type M (3 parts)from nylon
● Maintenance-free due to material combination nylon● Compensating for axial, radial and angular shaft
misalignment● Low weight and small flywheel effect● Axial plug-in – easy assembly● Operating range - 25 °C to + 100 °C● Available from stock with finish bore for standard shafts
including keyway to DIN 6885 sheet 1 and thread for setscrews, bore tolerance + 0,05 - 0,1 keyway tolerance ± 0,08, H7 fit for steel hubs only
Finish bores Dimensions [mm]Torque Max.
Hub, part 1b Plug-in-sleeve speedSize TK part 2b
Components
Type junior plug-in coupling (2 parts) Type junior M coupling (3 parts)
For advanced drive
technology
BoWex® Curved-tooth gear couplings®
Junior basic programme from nylonType plug-in coupling No. 001 a. type M No. 002
● Double cardanic curved-tooth gear coupling● Maintenance-free due to material combination of nylon and
steel● Compensating for axial, radial and angular shaft
misalignment● Type AS – separable coupling design - axially movable
sleeve when assembled● Type Spec.-I – axial plug-in for blind assembly● Application range from - 25 °C to + 100 °C● Available with finish bore acc. to ISO H7 fit, keyway to
DIN 6885, sheet 1 - JS9 and thread for setscrews (page 82)● For finish bores available from stock see KTR stock
programme on page 71● For performance data see page 70
d2 Ø 32
Finish bore H7 keyway to DIN 6885 sheet 1 (JS9)
Order form: BoWex® 32 AS
Size and type of couplingAS or Spec. - I
d1 Ø 32
Finish bore H7 keyway to DIN 6885 sheet 1 (JS9)
Finish Mass momentPilot bore Dimensions [mm] Weight of inertia Jbore d1; d2with max. bore Ø with max. bore Ø
● For all applications in the range of general engineering toquickly connect or disconnect power packs at standstill
● Maintenance-free due to material combination nylon andsteel
● Application range from - 25 °C to + 100 °C
● Available with finish bore according to ISO fit H7, keyway toDIN 6885 sheet 1 - JS9, thread for setscrews see on page 82
● Available with slip ring and shiftable linkage for manual operation
● For performance data please see page 70, compare to design M/I
● max. circumferential speed v = 20 m/s, referring to ØDA
Finish bore Dimensions of BoWex® coupling type SD1
D2 ± 0,1 n± 0,1D5(keyway) (keyway)
SizeShifting
force
(N)
4,4
Slip ring size
3
Shiftable linkage size
Order form: BoWex® 65 SD1
Coupling size and design
d1 Ø 32
Finish bore H7 keyway to DIN 6885
sheet 1 (JS9 )
d2 Ø 32
Finish bore H7 keyway to DIN 6885
sheet 1 (JS9)
For
fini
sh b
ores
ple
ase
see
KT
R s
tock
pro
gram
me
m1 m1a b c d d3 d4 e F g1 L2 L3 m Amin. max.
Size
Dimensions withm1 maxDimensions of shifting deviceShift- Slip
able ringlinkage
Size Size
1) = For a continuous base plate the dimension "e" has to be increased by at least10 mm. The brackets have to be adapted to the driving and driven sides ac-cordingly.
driving side driven side
connecteddisconnected
For advanced drive
technology
BoWex® Curved-tooth gear couplings®
Type SD1 with slip ring and shiftable linkage
78
junior 14
junior M-14
junior 19
junior M-19
junior 24
junior M-24
M-24
M-38
M-48
23 2 - 40 48 40 22/25/26 - - 8
23 4 37 - 50 40 - - 6,5 -
25 2 - 42 52 48 29/35 - - 10
25 4 37 - 54 48 - - 8,5 -
26 2 - 45 54 52 32/36/40 - - 9
26 4 41 - 56 52 - - 7,5 -
26 4 41 - 56 53 - - 36 7,5 -
40 4 48 - 84 83 - - 58 18 -
50 4 50 - 104 95 - - 68 27 -
2 111b 2b 1b 2 1b
22/25/26
27/30/32
26/32/36/38
Components
max. 14
max. 14
max. 19
max. 19
max. 24
max. 24
max. 24
max. 38
max. 48
BoWex®
Size
Dimensions (mm)
d1; d2 l1; l2 E LH LH1 L DH D1 D2 D M;N M1
● BoWex®-Shaft couplings made from polyamid or specialsteel (1.4571)
● Designs: BoWex® junior - plug-in coupling (2 parts) andType M (3 parts) from polyamidefinish bore see page 72
BoWex® M - with sleeve made frompolyamide and hubs fromstainless steel (1.4571),available with finish bore according to ISO-H7, featherkeyway according to DIN 6885thread for set screws see page 82
● For performance data please see page 70
Further sizes on request.
Type juniorplug-in coupling (2 parts)
Type junior-M(3 parts)
Type M
d2 Ø 24
Finish bore H7 keyway DIN 6885 sheet 1 (JS9)
Order form: BoWex® 24 V4A
Coupling size and design
d1 Ø 20
Finish bore H7 keyway DIN 6885 sheet 1 (JS9)
Application areas:Food processing industry, print and paper, textile industry, sewage technology, wash-mobiles, chemical and pharmaceutic in-dustry, offshore units ...For applications in aggressive atmospheres (air, water, chemicals etc.).
For advanced drive
technology
BoWex® Curved-tooth gear couplings®
made from corrosion-proof material
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● BoWex ZR couplings are available up to a length of 2000 mm only for serial applications (nmax = 1000 min/1)
● BoWex Spec. I with lengthened sleeve on request
● Lengthened special sleeves available on request
● Connecting larger shaft distances
● Axial shifting of driving and driven shaft at standstill
● Maintenance-free
● Compensating for larger displacements
● Axial plug-in
● Application range from - 25 °C to + 100 °C
Type Spec. I with a long PA-sleeve
● Double cardanic curved-tooth gear coupling
● For all applications to connect larger shaft distances
● Low-cost for serial production
● Compensating for larger shaft displacements
● Axial plug-in
● Intermediate tubes variable in length (max. 2000 mm;on consultation with KTR)
● Hubs available with finish bores acc. to ISO fit H7 as well as taper and inch bores
● Application range from - 25° C to + 100° C
SizePilot Finish
Dimensions (mm) Torque TKbore bore
Hub leng-d1/d2 l1/l2 thened l1;l2 LH E LZR total LR D DH di da TKN TKmax TKWmax.max.
14 - 14 23 40 40 3 25 40 21 25 10 20 5
28 - 28 40 55 60 3 as indicated by 44 66 30 26 45 90 23
Counterbore dK and hub length l2K (mm)Dimensions taper 1:5 Recess on hub collar D1 x l (mm)
Details of boresCode
d+0,05 bJS9 t2+0,1 lK
A-10 9,85 2 1,0 11,5
B-17 16,85 3 1,8 18,5
C-20 19,85 4 2,2 21,5
Cs-22 21,95 3 1,8 21,5
D-25 24,85 5 2,9 26,5
E-30 29,85 6 2,6 31,5
F-35 34,85 6 2,6 36,5
G-40 39,85 6 2,6 41,5
Counterbore dK and hub length l2K (mm)Dimensions taper 1:8 Recess on hub collar D1 x l (mm)
Details of boresCode
d+0,05 b+0,05 t2+0,2 lK
N/1 2,4 10,85 17
N/1c 11,6 3JS9 12,90 16,5
N/1e 13 2,4 13,80 21
N/1d 14 3JS9 15,50 17,5
N/2 17,287 3,2 18,24 24
N/2a 17,287 4JS9 18,94 24
N/2b 17,287 3JS9 18,34 24
N/3 22,002 4JS9 23,40 28
N/4 25,463 4,78 27,83 36
N/4b 25,463 5JS9 28,23 36
N/4a 27 4,78 28,80 32,5
N/4g 28,45 6JS9 29,32 38,5
N/5 33,176 6,38 35,39 44
N/5a 33,176 7JS9 35,39 44
Dimensions taper 1:10 Counterbore dK and hub length l2K (mm)
Details of boresCode
d+0,05 bJS9 t2+0,1 lK
CX-20 19,85 5 22,08 32
DX-25 24,95 6 26,68 45
EX-30 29,75 8 31,88 50
d2 Ø 28
Finish bore H7 keyway to DIN 6885 sheet 1 (JS9)
Order form: BoWex® M-28
Coupling size and design
d1 Ø B17 1:5
Finish boretaper bore Ø 16,85 ➞ 1:5
For stock parts please see page 71
For advanced drive
technology
BoWex® Curved-tooth gear couplings®
Taper bores
Tb 9,5+0,03 3/8 3,17 11,1
DNB 11,11M7 7/16 2,4 12,5
T 12,69H7 1/2 4,75 14,6
Ta 12,7+0,03 1/2 3,17 14,3
DNC 13,45M7 17/32 3,17 14,9
E 15,87+0,03 5/8 3,17 17,5
S 15,87+0,03 5/8 3,97 17,9
Es 15,88+0,03 5/8 4,0 17,7
DND 15,852H7 5/8 4,75 18,1
Ed 15,87+0,03 5/8 4,75 18,1
DNH 17,465H7 11/16 4,75 19,6
Ad 19,02+0,03 3/4 3,17 20,7
As 19,02+0,03 3/4 4,78 21,3
A 19,05+0,03 3/4 4,78 21,3
Fa 22,20+0,03 7/8 6,35 25,2
Ga 22,21H7 7/8 4,75 24,8
DNI 22,228H7 7/8 6,35 25,0
Gs 22,22+0.03 7/8 4,78 24,4
G 22,22+0,03 7/8 4,75 24,7
F 22,22+0,03 7/8 6,38 25,2
Gd 22,225M7 7/8 4,76 24,7
Gf 23,80+0,03 15/16 6,35 26,8
B 25,37+0,03 1 4,78 27,8
Ba 25,37+0,03 1 6,35 27,6
Bs 25,38+0,03 1 6,37 28,3
H 25,40+0,03 1 4,78 27,8
DNF 25,38H7 1 6,35 28,4
Hs 25,40+0,03 1 6,35 28,7
Sa 28,575M7 11/8 6,35 31,7
Sb 28,58+0,03 11/8 6,35 31,5
Sd 28,58+0,03 11/8 7,93 32,1
Ja 31,70H7 11/4 7,93 34,4
Jc 31,71+0,03 11/4 7,93 35,3
Js 31,75+0,03 11/4 6,35 34,6
J 31,75+0,03 11/4 7,93 34,4
K 31,75K7 11/4 7,93 35,5
DNK 31,755H7 11/4 7,93 35,3
Ma 34,925M7 13/8 7,93 38,7
M 34,92+0,03 13/8 7,93 38,6
RH1 34,93M7 13/8 9,55 37,8
Cb 36,50+0,03 17/16 9,55 40,9
Ca 38,07+0,03 11/2 7,93 42,0
C 38,07+0,03 11/2 9,55 42,5
N 41,25+0,03 15/8 9,55 45,6
Nb 41,275M7 15/8 9,55 45,8
Ls 44,42+0,03 13/4 9,55 48,8
L 44,45K7 13/4 11,11 49,4
Lu 47,625M7 17/8 12,7 53,5
Da 49,20+0,03 115/16 12,7 55,0
Ds 50,77+0,03 2 12,7 56,4
D 50,80+0,03 2 12,7 55,1
P 53,95+0,03 21/8 12,7 59,6
Pa 53,975M7 21/8 12,7 60,0
Ub 60,325M7 23/8 15,875 67,6
Wa 73,025M7 27/8 19,05 81,7
Wd 85,725M7 33/8 22,225 95,8
Wf 92,075M7 35/8 22,225 101,9
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Type Spline size l1 l2 lS F f
K PH-S 5/8” 42 – – – – P55810116/32DP; z = 9
K PI-S 3/4” – 35 – – – P55910116/32DP; z = 1142
K PB-S 7/8” 42 – – 60 3 P56710116/32DP; z = 13
K PB-BS 1” 42 – 27 50 6 P66020116/32DP; z = 15
48 K PA-S 1 3/8” 50 – 45 52 7 P66330116/32DP; z = 21
K PA-S 1 3/8” 55 – 48 52 5 P663301
6516/32DP; z = 21
K PC-S 11/4” 55 – 44 52 5 P65620112/24DP; z = 14
Type Spline size l1 l2 lS F f
N 25x1,25x18 42 – – – – P000205
42 K 25x1,25x18 42 – – – – P500202
K 30x2x14 42 – – 60 6 P500203
48N 30x2x14 50 – – 60 6 P000206
K 30x2x14 50 – – 60 6 P500203
N 35x2x16 55 – – 60 6 P000303
K 35x2x16 60 – – 60 6 P500301
65 N 40x2x18 55 – – 78 6 P000304
K 40x2x18 60 – – 78 6 P500302
K 45x2x21 55 – – 78 6 P500401
Ø G
Finish bore Ø 22.22keyway 4,75 x 24,7
code G
Order form: BoWex® M-42
Coupling size and design
P 500203
Clamping hub with spline30x2x14 DIN 5480
BoWex®Spline and clamping hubs to DIN 5480 Order
coupling designationsize Indicate
coupling size
BoWex®Spline and clamping hubs to SAE J498 Order
coupling designationsize Indicate
coupl. size
Inch bores – For the stock parts please see the KTR stock programme
Code Ø d Ø d b+0,05 t2+0,2
inch Code Ø d Ø d b+0,05 t2+0,2
inch Code Ø d Ø d b+0,05 t2+0,2
inch
Stock programme of BoWex®
spline hubs
Spline hub (N) Clamping hub (K)
If it is not possible to secure thehubs of pump shafts with invo-lute spline by means of an end plate and a screw, we recommend our spline clam-ping hub. The radial clamping ensures a backlash-free tight fit on the pump shaft.
For advanced drive
technology
BoWex® Curved-tooth gear couplings®
Spline hubs · Inch bores
82
BoWex couplings are double cardanic and in addition to transmitting the power compensate for axial, radial and angular shaft displace-ments in a way to prevent damages from the driving or driven machine, respectively.
Types of displacement
Parallel shafts Shafts subject to radial displacement Shafts subject to angular displacement Shafts subject to radial and angular displacement
The assembled hubs must in every case be flush with the shaft ends. If it is difficult to determine the distance dimension E, reference may be made to the overall assembled length.The shaft ends to be connected should be supported close to each coupling half.1) The listed distance dimension E for the different couplings must be observed in every case, particularly for radial and angular misalignments.2) If the coupling hubs have been shortened or lengthened on the outside, the overall length of the coupling assembled will be reduced by the corresponding figure.3) The permissible displacement figures depend on speed and performance. We shall be glad to send you a displacement diagramme if required.Prior to operation of the BoWex coupling please make sure that the coupling sleeves are readily capable of axial movement.The customer must provide guards in order to ensure that rotating parts cannot cause injury (Safety of Machines, DIN EN 292 part 2).
Overall length L Can the coupled Shift distance Max. Max.of the coupling power pack be dimension E 1) axial displacement permissible displacements
Type and size assembled disassembled(standard design) 2) vertically without axial �Ka �Kr radial or �Kw angular
[mm] displacement? [mm] [mm] [mm] [a°]
junior 14 (plug-in coupling) 48
junior 19 (plug-in coupling) 52 no 2 ±1 ± 0,1
junior 24 (plug-in coupling) 54
junior M-14; M-14 50
junior M-19; M-19 54 no± 0,3
junior M-24; M-24; Special I-2456
24 AS; 24 SSRyes
24 SG 76
M-28; Special I-28 no
28 AS; 28 SG; 28 SSR yes
M-32; Special I-32 84 no4 ± 0,4
32 AS; 32 SG; 32 SSR yes
M-38 no
M-42 no± 1 ± 1° each hub
45 AS; 45 SG; 45 SSR 88 yes
Special I-45no
M-48 104
M-65, Special I-65114
no± 0,6
65 AS; 65 SG; 65 SSR
80 AS; 80 SSR186
yes6 ± 0,7
I-80; Special I-80; 80 SG no
100 AS; 100 SSR228
yes8 ± 0,8
I-100; Special I-100; 100 SG no
125 AS; 125 SSR290
yes10 ± 1,1
I-125; Special I-125; 125 SG no
Threads for setscrews
Thread dimensions for setscrewsBoWex® coupling hubs with cylindrical bores
Position of the thread for setscrewsBoWex M-14 to M-24opposite to the keyway
BoWex M-28 to I-125on the keyway
Size 14 28 42Dimensions 19 32 45 65 80 100 125
24 38 48
Thread G M5 M8 M10 M10 M12 M16
Distance t 6 10 15 1)20 30 4020
Tightening torque 2 10 17 17 40 80TA [Nm]
Size 14 19 24
Thread G M5 M5 M5
Hub 1b Distance t 6 6 6
Plug-in sleeve2b Distance t 8 10 10
Tightening torqueTA [Nm]
2 2 2
1) Hub length 55 mm t = 15 mm, 70 mm t = 20 mm
For advanced drive
technology
BoWex® Curved-tooth gear couplings®
Displacements · Threads for setscrews
Position of the thread for BoWexjunior plug-in coupling and junior M-coupling